So I have a 20L heavily planted tank that I used to run a sponge filter on but I had to move so I ended up selling the fish but kept the tank mostly in tacked as I moved it to my new home. It only has a colony of shrimp that are thriving but I recently added this little guy to the mix. I’m thinking of adding some Pygmy Cory’s and CPDs to the tank but not sure how many I should add considering the lack of filter. I’ve used to run filter less tanks in the past but I didn’t add new stock to them. So I’m wondering how I should add more fish without causing a spike in ammonia/overload the system.
Posted by Maximum_Royal_712